Sennheiser
Sennheiser HMD 27 Dual-Ear Commentator/Audio Engineer Headset
Best professional headset for broadcast commentators and audio engineers.
The Sennheiser HMD 27 is a professional dual-ear headset designed for demanding commentators and audio engineers. It offers exceptional audio performance and ergonomic comfort for extended use. This closed, circumaural headset features switchable ActiveGard technology to protect your hearing from sudden noise peaks. The dynamic microphone boom can be positioned for left or right-side use, and the lightweight, split headband ensures pressure-free wear. Its modular design allows for easy cable customization, making it a versatile tool for broadcast professionals.
$599.00
Owner Satisfaction
4.7
/ 5
Category Rank
10
/ 1491
#10 in Audio Headsets
Price vs Category Average
+286%
Above average
Transducer Principle
Dynamic (headphones and microphone)
/ Dynamic (headphones and microphone)
Who it's for
- Commentators enduring long shifts behind the microphone
- Broadcasters working in loud, high-pressure live environments
- Audio professionals prioritizing vocal clarity and hearing safety
Who should skip it
- Budget-conscious buyers seeking entry-level audio equipment
- Users sensitive to tight head pressure or heat buildup
- Shoppers wanting an all-in-one, ready-to-use cable solution
Performance breakdown
Audio Fidelity
Delivers crisp, studio-grade sound reproduction essential for critical broadcast monitoring.
Ergonomic Comfort
The split headband design eliminates pressure points during long broadcast shifts.
Hearing Protection
ActiveGard technology provides a vital safety net against sudden acoustic spikes.
Build Versatility
Modular cabling and flexible boom positioning adapt to any studio workflow.
Isolation Performance
Closed-back design effectively seals out ambient noise in busy production environments.
Microphone Clarity
Dynamic capsule captures clear, broadcast-ready speech with minimal background interference.
Key Specs
Transducer Principle
Dynamic (headphones and microphone)
Frequency Response
4Hz - 21,000Hz (headphones) / 40Hz - 18,000Hz (microphone)
Impedance
64Ω (headphones) / 300Ω (microphone)
Max Sound Pressure Level
125 dB SPL (ActiveGard off)
Total Harmonic Distortion (THD)
< 0.1% @ 1kHz, 100 dB SPL
ActiveGard Limits
95dB SPL / 110 dB SPL @1kHz
Weight
approx 240g (without cable)
Connectivity
Wired (Modular design)
Features
- Professional broadcast headset for commentators and engineers
- High audio performance and ergonomic comfort
- Switchable ActiveGard hearing protection
- Dynamic microphone with flexible boom positioning
- Lightweight design with pressure-free split headband
- Closed, circumaural design for immersive sound
- Modular design for cable customization
- Flip-away headphone for single-sided listening
What customers say
This headset earns high praise for its superior comfort and professional reliability. Users consistently note the automatic headband effectively minimizes pressure during long sessions. The robust build quality promises excellent durability for frequent handling and travel without compromising performance. Although the initial cost is significant, the dependable, long term performance confirms its excellent value as a critical tool for professional audio tasks.
Know before you buy
Yes, the microphone boom is fully flexible and can be positioned on either the left or right side to suit your preference or studio setup.
ActiveGard is a built-in safety feature that protects your hearing from sudden, unexpected audio spikes. You can toggle it on or off, with settings that limit output to either 95dB or 110dB SPL.
The HMD 27 features a lightweight, split-headband design that automatically adjusts to your head shape, effectively distributing weight to prevent pressure points during extended use.
The headset uses a modular design, meaning the cables are detachable and can be easily swapped or replaced if they become damaged or if you need a different connector type.
Yes, the headset is designed with a flip-away earcup, allowing you to easily monitor your surroundings or communicate with colleagues without removing the entire headset.
The circumaural, closed-back design is specifically engineered to provide high levels of passive noise attenuation, making it ideal for blocking out ambient noise in busy broadcast environments.
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